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Finding the Fourth Proportional to 342,517.46, 472,516.39 and 221,697.56

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Solution

The fourth proportional to 342,517.46, 472,516.39 and 221,697.56 is: 305,840.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,517.46 : 472,516.39 = 221,697.56 : x
  2. Step 2: Convert to fraction form
    342,517.46/472,516.39 = 221,697.56/x
  3. Step 3: Cross multiply
    342,517.46x = 472,516.39 × 221,697.56
  4. Step 4: Simplify right side
    342,517.46x = 104,755,728,276.47
  5. Step 5: Solve for x
    x = 104,755,728,276.47/342,517.46
  6. Step 6: Final answer
    x = 305,840.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.